Horseshoe-calk.



No. 784,496. PATENTED MAR. 7, 1905. F. A. KUNZE & T. GREENZWEIGHT.

HORSESHOE GALK.

APPLIOATION FILED ssmzs, 1904.

PM w I,

NITED STATES Patented March 7, 1905.

PATENT ()FFIcE.

HORSESHOE-CALK.

SPECIFICATION forming part of Letters Patent No. 784,496, dated March 7, 1905.

Application filed September 23, 1904:. Serial No. 225,672.

To (LZZ whom it may concern:

Be it known that we, FREDERICK A. KUNZE and THOMAS GREENZWEIGHT, citizens of the United States, residing at IVilliamsport, in the county of Lycoming and State of Pennsylvania, have invented a new and useful Horseshoe-Calk, of which the following is a specification.

This invention relates to horseshoe-calks.

The object of the invention is to present a calk which shall be exceedingly light, durable, and easily applied to position, which shall be self-sharpening, and which shall be of such construction that the permanent lodgment of ice or dirt within it will be positively preeluded.

\Vith the above and other objects in View, as will appear as the nature of the invention is better understood, the same consists in a longitudinally-corrugated horseshoe-calk.

The invention consists, further, in a longitudinally-corrugated open-sided horseshoecalk having its inner wall disposed on an incline from the base to the point of the calk.

The invention consists, further, in the various novel details of construction of a horseshoe-calk, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which like characters of reference indicate corresponding;

parts, there is illustrated one form of embodiment of the invention capable of carrying the same into practical operation, it being understood that the elements therein exhibited may be varied or changed as to shape, proportion, and exact manner of assemblage without departing from the spirit thereof.

In the drawings, Figure 1 is a view in perspective of a portion of a horseshoe exhibiting the calk of this invention combined therewith. Fig. 2 is a view in longitudinal vertical section through the calk and the shoe. Fig. 3 is an inverted sectional plan view, the section being taken on the line 3 3, Fig. 2, and looking in the direction of the arrow thereon.

The calk of this invention, as shown in Fig. 2, is provided with a threaded shank 1 and a body portion 2, the body being tapered from the shank to its point 3, has one side open, as at 4:, and is provided with longitudinal flutes or corrugations 5, extending from the shank to the point. The inner wall 6 of the calk is inclined or curved from the point to the shank, thereby presenting a lateral opening through which dirt or ice will escape, the contour of the wall being such that any material that enters the calk will be forced therefrom as additional matter enters the opening, whereby the calk is absolutely self-clearing. This inclined feature of the inner wall 6 also assists in making the calk self-sharpening, so that it will be effective for securing the object designed throughout its entire length.

By making the calk fluted or corrugated in cross-section, as clearly shown in Figs. 1 and 3, it may be made very thin and at the same time be of sufficient strength to withstand all strains to which it will be subjected. This is a feature of great importance, inasmuch as it not only reduces the cost of the calk, but relieves it of objectionable weight, such as is common with calks of ordinary construction.

The calk will generally be constructed as shown in the drawings; but it is to be understood that in carrying the invention into efiect changes as to the construction and exact contour of the parts may be adopted without departing from the scope of the invention.

Having thus described the invention, what is claimed is 1. A longitudinallyfluted or corrugated hollow calk, tapered from its base to its point.

2. A horseshoe calk having a threaded shank, a longitudinally corrugated hollow body, substantially circular in cross-section, and open on one side, the inner wall of the calk being disposed on a curve.

3. A horseshoe calk having a threaded shank and a tapered hollow body portion, longitudinally-corrugated and open on one side.

I. A horseshoe calk having a threaded shank and a longitudinally-corrugated hollow body open at one side.

In testimony that we claim the foregoing as our own we have hereto affixed our signatures in the presence of two witnesses.

FREDERICK A. KUNZE. THOMAS GREENZ WEIGHT. Witnesses:

FRED W. TEPEL, A. H. STEAD. 

